1. If the current in the wire inside a lightbulb is 3A, what is the current...

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1. If the current in the wire inside a lightbulb is 3A, what is the current in the connecting wire going into the lightbulb?

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Answer 1

Answer #1

Problem - 1

According to the Kirchoff current law, the current enertering is equal to the current leaving, therefore the connecting wire must have a current of 3 A

hence, option - 2 is correct answer.

Problem - 2

Magnetic fields are due to moving charges particles.

Hence, option - 3 is correct answer.

Problem - 3

The force due to magnetic field on an object is given by

$\vec F = q (\vec v \times \vec B)$

Therefore all options / conditions are true,

Hence, option - 4 is correct answer.

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Answer 2

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1. If the current in the wire inside a lightbulb is 3A, what is the current...

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